Which one of the following casting processes is best suited to make bigger size hollow symmetrical pipes?
Centrifugal casting
Die casting
Investment casting
Shell moulding
In a centrifugal casting method
No core is used
Core may be made of any metal
Core is made of sand
Core is made of ferrous metal
Poor machinability of centrifugally cast iron pipe is due to
Dense structure
Chilling
Segregation
High mould rotation speed
Which of the following are the most likely characteristics in centrifugal casting?
Fine grain size and high density
Fine grain size and high porosity
Coarse grain size and high porosity
Coarse grain size and high density
Which of the following are produced by slush casting?
Hollow castings with thin walls
Hollow castings with thick walls
Thin castings
Thick castings
The method of casting for producing ornamental pieces are:
Pressed and slush casting
Slush and gravity casting
Gravity and semi permanent mould casting
Semi permanent mould and pressed casting
The process of making hollow castings of non-circular shape and desired thickness by permanent mould without the use of cores is known as
Slush casting
Die casting
Pressed casting
Centrifugal casting
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